"Now we're appealing for anybody who knows anything about what happened to Tialeigh to come forward.

"We definitely do need answers, but it's also we don't want another family to have to go through what we have had to go through. That's top of our list as well, finding out what happened to her because she didn't deserve what happened to her."

"It takes a vile human being to be able to take an innocent 12-year-old's life, however she died."

Tiahleigh was last seen alive at Marsden State High School on October 30. Her body was found six days later and 40km away on the banks of the Pimpama River.

In February Police announced a $250,000 reward and indemnity from prosecution to accomplices if they came forward.

Police divers searching for evidence in their ongoing investigation into the murder of Tiahleigh Palmer on November 10, 2015

But Palmer said she thought whoever the person or persons who had information on her daughter's murder was "too loyal" to whomever they were protecting for the money to make be an issue.